The Telerik MVC controls use JSON I think behind the scenes. They have source code – I am interested in evaluating that as well. (I’m using their controls, I mean evaluate as in see the source and how they implement their controls with JSON – in particular their grid control)

What you might appreciate here is that you could, in theory, use this approach as your view for any backend framework.

Also, I know ExtJS has some rich controls, they are all Json related, I think Phil Haack had an article on using mvc with ext.

Basically, today, if you add for example, an item to a ‘grid’, I go behind the scenes, add it – then redisplay the grid. In these approached, you’d literally just append a row to the grid instead. Very interesting. The value is going to be less traffic, as partial views create more traffic.